996980 has 24 divisors (see below), whose sum is σ = 2123520. Its totient is φ = 393120.

The previous prime is 996979. The next prime is 997001. The reversal of 996980 is 89699.

996980 = 71² + 72² + ... + 149².

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265 + ... + 1895.

It is an arithmetic number, because the mean of its divisors is an integer number (88480).

2⁹⁹⁶⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

996980 is an abundant number, since it is smaller than the sum of its proper divisors (1126540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

996980 is a wasteful number, since it uses less digits than its factorization.

996980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 996980 is about 998.4888582253. The cubic root of 996980 is about 99.8992318252.

The spelling of 996980 in words is "nine hundred ninety-six thousand, nine hundred eighty".